Ramblings of an Emergency Physician in Texas

London (CNN) — Growing up on the streets of Manhattan, riding skateboards and listening to punk rock, Denton John never expected to find himself where he’ll be on Friday — on horseback, boots gleaming, as the only American in the royal wedding of Britain’s Prince William and Kate Middleton.

But that is just where he will be, in white gloves and red plume, as a member of the Household Cavalry Mounted Regiment, protecting Queen Elizabeth II as she leaves Westminster Abbey to return to Buckingham Palace.